The hydrozole cream contains the clotrimazole and hydrocortisone and is commonly used for jock itch.It may take 2-3 weeks after the start of therapy for the lessions to fade away.

Since you have taken and applied the drug for 2 weeks so you still need to apply it a week or two more.The clearing of the lession suggest that the condition and symptoms are improving and you should not worry.

The small white dots may be the sebaceous cyst which may occur on scrotum and they are harmless.The other possibility could be the infection causing pus collection though the chances are less.The antibiotics may be needed in case of infectious cause.